hi folks have a 2001 w210 e320 cdi. it won't fire on no3 cyclinder. there's no feul coming out of the injector. runs fine on other cyclinders. got injectors checked and cleaned cost £ 300. pulled head off cleaned inlet manifold and it needed a piston on number 6 cyclinder.built her back up but still the same.does anyone know if there is a limp mode that would stop feul being injected by no 3 injector. pulled injector out will only spray fuel once. any help gratefully apprectiated costing a fortune so far and still no joy....bill stands at £1000 nearly.